Steel is a mixture of iron with a small amount (typically less than 2%) of carbon. Increasing the amount of carbon makes high-carbon steel, which is harder and stronger, but more brittle.
High carbon steels are hard, strong and resistant to wear.
carbon
Anti-magnetic high manganese steels are just that.
High speed steel typically contains around 0.7-1.4% carbon. This carbon content helps improve the hardness and wear resistance of the steel, making it suitable for cutting tools and other high-speed applications.
Spheroidization is an annealing process used for high carbon steels (Carbon > 0.6%) that will be machined or cold formed subsequently.
There are 4 they are Low Carbon steel, Medium Carbon Steel, High Carbon Steel and Eutectiod
state how low carbon steels can be given a hard case?
high thermal expansion
Carbon steels are designated by 4 number referring to the manganese and carbon content (e.g. 1018, 4140, 1095) High speed steel use a letter and number configuration for their designation. The high speed steels designations begin with one of two letters either an M for Molybdenum type or T for Tungsten type high speed steels. ( e.g. M-2, M-4, M-48 or T-1, T-15)
You can find high carbon steel in just about any everyday house tool. A few examples are knives, wheels, wrenches, drill bits, chisels, and saws.
medium and high carbon steels may also be called spring steel
High alloy steel contain: iron (base), carbon, nickel, vanadium, chromium, molybdenum, wolfram, silicon, etc.